Subtract 12/18 from 10/25
10/25 - 12/18 is -4/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 25 × 18 = 450,
10/25 = 10 × 18/25 × 18 = 180/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
12/18 = 12 × 25/18 × 25 = 300/450 - Subtract the two like fractions:
180/450 - 300/450 = 180 - 300/450 = -120/450 - After reducing the fraction, the answer is -4/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/25-12/18 10/25-24/18 10/50-12/18 10/25-12/36 30/25-12/18 10/25-36/18 10/75-12/18 10/25-12/54 50/25-12/18 10/25-60/18 10/25-12/90 70/25-12/18 10/25-84/18